Production technology of coated modified polyethylene fibers

Abstract

The invention relates to the technical field of chemical fiber production and in particular relates to a production technology of coated modified polyethylene fibers. The production technology comprises the following steps: (1) melting and extruding polyethylene and polyester respectively through a screw rod, so as to obtain a melted polyethylene material and a melted polyester material; (2) coating the surface of the melted polyester material with the melted polyethylene material according to the mass ratio of (45 to 70) to (30 to 55), so as to obtain polyester modified polyethylene, whereinthe step of coating is realized by enabling the melted polyester material to pass through a bath groove containing the melted polyethylene material in a fine flow manner; (3) cooling the polyester modified polyethylene; then adding an oil agent on the surface of the polyethylene to obtain a coated modified polyethylene fiber semi-finished product; and (4) carrying out stretching, curling and thermal setting on the coated modified polyethylene fiber semi-finished product to obtain the coated modified polyethylene fibers. The coated modified polyethylene fibers obtained by the production technology have the advantages of high strength, uneasiness of being deformed after stretching, high cohesive force, uneasiness of generating static electricity and good comprehensive performance, and are applicable to textile fabrics.

Description

technical field [0001] The invention relates to the technical field of chemical fiber production, in particular to a production process for coating modified polyethylene fibers. Background technique [0002] In recent years, with people's yearning and pursuit of a better life, the requirements for the comfort, health, safety and environmental protection of clothing fabrics are getting higher and higher. As people spend more time outdoors, the trend of mutual penetration and integration of casual wear and sportswear is increasingly favored by consumers. The fabrics of this type of clothing not only require good comfort, but also need to not stick to the skin and produce a cold and wet feeling once sweating occurs during activities. The performance of the fiber directly affects the function of the fabric, therefore, the fiber used needs to have comfortable and moisture-wicking properties. [0003] Natural fibers take cotton as an example. It has good hygroscopicity and is co...

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Problems solved by technology

[0003] Natural fibers take cotton as an example. It has good hygroscopicity and is comfortable to wear. However, when the human body sweats a little, the cotton fiber will swell due to moisture absorption, and its air permeability will decrease and it will stick to the skin.

At the same time, the water dispersion speed is also slow, causing a cold and wet feeling to the human body; synthetic fibers such as polyester have low water absorption and poor moisture permeability. Due to the accumulation of static electricity, it is easy to cause troubles when wearing, especially It is easy to feel stuffy during activities; special-shaped polyester fibers have the functions of perspiration and moisture conduction, but the surface of this type of material is rough and the comfort is poor

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